Machine and method for making dry-pressed rough-texture brick



Dec. 2, 1924. r 1,512,452

0. C. OEHLER ET AL.

MACHINE AND METHOD FOR MAKING DRY PRESSED ROUGH TEXTURE BRICK Filed Dec. 11, 1922 2 Sheets-Sheet 1 IN VISA/7P0 E5 I 0% 6 06M 4 nor/AW fl/ /em d.

Dec. 1924- 1,517,452

. o. c. OEHLER ET AL MACHINE AND METHOD FOR MAKING DRY PRESSED ROUGH TEXTURE BRICK Filed Dec. 11, 1922 2 sheets-sheet 2 I Patented Dec. 2, 1924.

OTTO C. OEHLER AND WILLIAM I-IILLEBR-AND, OF ST. LOUIS, MISSOURI.

neonnvn AND METHOD eon MAKING nay-rnnssnn nonen-rsxrunn-narox.

Application filed December 11, 1922. Seria l No./606,080.

T 0 all whom 2'2? mag concern.

Be it known that we, O'r'ro O. Onrrnnn and VILLIAM HiLLEBRAND, citizens of the United States, residing in the city of St. Louis, State of Missouri, have invented a certainnew and useful Improvement in Machines and Metlr ods for making Dry-Pressed Rough-Texture Brick, of which the following is a full, clear, and exact descript on, such as will enable others skilled in the art to which it, appertains to make and use the same.

This invention relates to the manufacture of dry-pressed, rough texture brick.

One object of our invention is to provide 7 a dry-pressed, rough texturev brick that is very rough, irregular and uneven, and consequently, more attractive than the dr pressed, rough texture brick now on the market.

Another object is to provide a novel method of producing such a brick.

And still another object is to provide an apparatus of simple design and inexpensive construction for converting a smooth face, dry-pressed brick into a brick that has a rough, jagged and uneven exposed surface. Other objects and desirable features ofour invention will be hereinafter pointed out.

Figure 1 of the drawings is a side elevational view of an apparatus constructedin accordance with our invention for converting a smooth face, dry-pressed brick into a rough texture brick.

Figure 2 is a perspective View of a stand ard rough texture brick produced by said apparatus.

Figure 3 is a perspective View of a rough texture brick whose ends and one side face are serrated.

Figure 4 is a side elevational view of the scoring mechanism; and

Figure 5 is a transverse sectional view, taken on the line 55 of Figure 1, looking in the direction indicated by the arrows.

The method that is now used. to make (.lry- I pressed, rough texture brick consists of framing the brick in a mold box provided.-

with fluted or corrugated surfaces that produce ribs or corrugations on certain faces of the brick, removing the brick from the mold box and thereafter passing the brick through an apparatus that forms scratches or serrations in the corrugations of the brick at right angles to the ribs on said faces. As the rough surfaces of the brick are formed principally by molded ribs or corrugations that are straight, regularand even, the brick lacks the gagged and uneven appearance that a is sought after in bricks of the so-called matt or texture surface type. Accord ingly, the present method of making dry pressed, rough texture brick is deficient,- in that it does not produce a 'brick that is sufficiently rough and uneven to be considered artistic. Another objectionable feature of said method is that it necessitates the use of a special mold box which has to be installed in the press each time the press is I used'for making rough texture brick. The labor-cost of substitutingzone mold box for another is considerable, and as it takes about two days to remove one mold box and install another, the press is out ofcommission I orservice four days every time rough texture br ck are made 111 the press, two days being required to substitute the corrugated mold box forthe smooth face mold box to put the press in condition to be used for manufacturing roughtexture brick and two days being required to restore "the press'to its former condition With a small brick manufacturer this is a serious thing, for it practically prohibits the manufacture of dry-pressed, rough texturebrick in small quantities, as it is not feasible, from a commercial standpoint, to shut the press down for a'total of four days'every timeit is used for making rough texture brick.

Our invention overcomes the necessity of using a corrugated mold box or mold box of other special design inthe manufacture of dry-pressed, rough texture brick; it overcomes the necessity of shutting the press down for several days and installing a dif-H ferent mold box every time the press is used for making rough texture brick and it produces an artistic brick that has the rough, uneven and agged appearance sought for in bricks of the matt or texture surface typo.

Briefly stated, our method consists in forming a dry-pressed brick in a conveu tional mold box provided with smooth sur- Hill faces, removing the brick from said mold 7 'box at the completion of the pressing opera tion, and thereafter passing the molded brick through an apparatus that converts "the smooth surface on one or more faces of the brick into a rough, uneven and agged surface that 1s made up of a number of scratches, serrations or score marks that extend in the same general direction over. the surface, but which are more or less broken up by portions of the surface'of: the brick that crumble during the scoring I operation.

Any suitable press and smooth face mold box may be usedto form the brickand-various kinds of apparatus may be used to scratch, scoreor serrate-*thefacesof the brick which it is desired shall have a rough texture surface. We prefer, however; to feed the molded brick either manually or automatically by-"suitable. mechanical means to-a scoring apparatus of the kind illustratedinthe drawingswhich is provided with means for simultaneously scoring, or

serrating three faceso'f the-brick. The ap paratus is constructed in=such a way that the scoring devices 'can die- 7 ad usted to vary thedeptlrof the serrations'formed in the- 'faces 'ot 'the brick, andit' is also preferably constructed in such a manner that it' can be used to produce a-standard rough texture brick Of-dJllGklIlCl shown in Figure 2' havingits--endsand one of its-edgesvserrated, or a brick of the kind shown *in Figure 3 having 1ts-endsand one of ltsflat faces-serrated;

Referring to the drawings, A designates thebed plate of the machine. B designatesa horizontally 'disposed feed table on'which a plurality of inolde'd i bricks a" are adapted to be arranged; one" behind the other, as

shown in Figure 1, C designates as an I err tirety a scoring mechanism and D designates a reciprocating plunger for-feedingthe brick longitudinally of the table-B; so to 1 cause them-to -be-acted uponby thescoring mechanisn'rC. ln-the'inachine here-1n illustrated the scoring inechanisin'is composed of" twoside'fralnes or supporting elements 1 connected-to thebed plate-of the machine,

mounted "in the sidefralnes 1 and provided with scoring devices 3 andS, respectively, and two sets or pairs of vertically-disposed shafts and 4: mounted in the: SlClGfIZtIHGS 1 and provided: with horiZontally-disposed scoring devices 5 and5, respectively, that project laterally from said shafts. shafts 2 and are 'arrangedinthe saine horizontal plane, onebehind the other, and'tlie scoring device and 3 on saidshatts projectdown ward "OITLSEUD'G at an angleo'lfr approximately 4-5" so as to 'torln serrathins, scratches or more marks an in the top" ta e inolded brick that-are movedlougiiudinally es of the" ofthe table B by the feeding device-IX.

Preferably the" scoringdevices 3 'on'the shaft 0 the scoring devices 3" onthe shaft'TsO as to term serrations 1n the brick that are spaced close enough togethertotend 'tocause the .a are arranged in staggered relation with material in the face of the brick'to.c1'u1nble,

and thus produce ajagged anduneven'sur race that is sufliciently roughandunevento impart an artisticappearance to the'bri'ck. The verticalshatts r and'd in each of the side irani'esl are arrangednrthesaine' ver tical plane, one behindthe other, and the scoring devices 5 and 5 on said shafts are also preferably arranged in staggered relation. Any suitable kind-of scoring devices may be used andsaid devices may be mounted'in'any suitableivay in the'shafts that support same. We prefer, however, toconnect the-scoring devices to their supporting shaft-s by set screws 6, as shown in Figure 5, so as to enable saidscoring device to be adjusted to compensate for wear.

It the brick are arranged edgewise-onthe table B' in' tHlVZLUCG'Ol thephi nger D, the forward stroke of said plunger causes the brick to be fed forwardly past the scoring devices 3, 3, 5 and 5, thereby producing serrations w inth'e top itaces of the brick and serrations w in the and faces of the brick, asshown 1 in I Figure =2. In order thatthe machine may be used to-fOlm-bll'ck oi" the kind shown in Figure -53 the bedplate A or" the machine is providedwith notohes 0r depressions 7 in which-the side frames-1 of: the scoring inecha-msln canbeset; as indicated in broken lines in Figural, so =as-to ar range the horizontal 'sha-ft's 2" and 2.- close-r tothe feed table- 13 of the machine, thus causing the ends and the top faces of the brick-"tobe scoredinthe manner sl-iown-in Figure 3 when the brick are arranged fiat- Wise on* the table -13 and fed through the scoring mechanism by'theplunger or feeding deVicesD.

The shafts that carry the serrating device s' are inaintain'ediin a stationary position during the scoring operation and in order that the depth of the scratches or serrationslit) equipped. with worms 9 which mesh with wormgears 10 on-thesha'fts 2' and-i2 and eqmp'each ol'lhe' snlciraines l with a manually operated adjusting; shai't 1.1, that" is provided with Worms 12 which mesh with wornrgears 1.3 on the upper cnds'o'lf the vertical shafts '4: andd, as shown-more rlearl; in Figures at and Bymanipulating the shaftS thehorizontalshafts 2 and 2" canbe turned so-as to change the angle of the scoring devices onsaidshafts, and thus vary the deptli'ofthe'cuts or serrations made in the topfaces ofthebrickby said scoring'devices. Similarly the shafts 11 can be. manipulated so'asfto'vary the angle. oif'the horizontallydisposed scoring'd-vicesa anc 5, and" thus till vary the depth of the cuts or serrations made in the end faces of the brick by said scoring devices.

Any suitable means can be used for operating the feeding device D which moves the stated, the molded brick can be placed on the feed table B by hand or can be fed automatically onto said table by a mechanical feeding means. In the machine herein illustrated the plunger D is reciprocated longitudinally of the feed table 13 by a link 14 connected to the plunger D and to a crankla on a shaft 15 that is provided with a gear 16 which meshes with a pinion 17 on a drive shaft 18 provided with a belt pulley 19.

The above described method of making dry-pressed, rough texture brick not only produces brick that have a more attractive appearance than the dry-pressed, rough teX- ture brick now on the market, but it also overcomes the necessity of changing the mold box of the brick press every time the press is to be used for making rough texture brick. Accordingly, it effects a considerable saving in the cost of manufactun ing rough texture dry-pressed brick and makes it practicable for a small brick manufacturer to use the same press for making smooth face brick and rough texture brick, because the mold box of the press does not have to be changed each time it is used to make rough texture brick. It is, of course, immaterial, so far as our method is concerned, What particular type or kind of apparatus is used for serrating or scoring the molded brick after they have been removed from the mold box of the press, but When a scoring or serrating machine of the kind herein illustrated is used, the character of the rough surfaces produced on the brick can be modified easily by changing the adjustment of the scoring devices, and standard dry-pressed brick or brick that are adapted to be arranged in a Wall edgewise can be produced in the same scoring machine simply by changing the position of the scoring mechanism on the bed plate of the machine.

Having thus described our invention, what we claim and desire to secure by Let tcrs Patent is: I

1. A method of making a dry-pressed, rough texture brick, characterized. by forming a dry-pressed brick in a smooth face mold box, removing the brick from said. mold box at the completion of the pressing operation, and thereafter ornamenting the brick by moving it relatively to devices that impart a jagged, rough and uneven appearance to one or more faces of the brick by forming scratches or serrations in said faces.

2. A machine for imparting a rough texture surface to a dry-pressed brick, provided with a scoring mechanism comprising a hor-v izontally-disposed shaft and avertical shaft arranged 'adjaeent the path of travel of a brick that is to bescored and adapted to be maintained in astationary position during the a scoring operation, angu'larly-disposed scoring devices on said shafts, and means for adjusting said'shafts to change the angle of said scoring devices. 7 1

3. A machine for imparting a rough texture surface to a dry-pressed br1ck,compr1sin'ga feed table over which a molded brick is adaptedto be moved, a horizontally-disposed shaft arranged above said table and provided with a gang of do 'vnWardly-projecting scoring devices thatform serrations in the top surface of a brick positioned on said table, said shaft being maintained in a stationary position during the scoring operation, and means for turning said shaft to simultaneously adjust all of said scoring devices When it is desired to vary the depth of the serrations formed in the brick.

41. A machine for imparting a rough texturesurface to a' dry-pressed brick, comprising a feed table over which a molded brick is adapted to be moved, a horizontally-disposed shaft arranged above said table and provided with downwardly-projecting scoring devices that form serrations in the top surface of a brick positioned on said table, means for turning said shaft to vary the depth of the serrations formed in the brick, vertically-disposed shafts arranged at opposite sides of said table and provided with scoring devices for forming serrations in the ends of the brick, said horizontal and verti-J cal shafts being maintained in a stationary position during the scoring operation, and means for adjusting said vertical shafts to vary the depth of the serrations formed by the scoring devices on said shafts.

5. A machine for imparting a rough texture surface to drypressed'brick, comprising a table, means for feeding molded brick over said table, a scoring mechanism comprising side frames arranged adjacent said table, a plurality of horizontally-disposed shafts carried by said side frames and provided With dependingscoring devices ar-- ranged in staggered relation, and vertical shafts carried by said side frames and provided With laterally-projecting scoring devices arranged in staggered relation, said shafts being maintained in a stationary posi= tion during the scoring operation.

6. A machine for imparting a rough texture surface to dry-pressed brick. comprising a table, means for feeding molded brick over said table, a scoring mechanism comprising side frames arranged adjacent said table, a plurality of horizontally-disposed shafts carried by said side frames and provided with depending scoring devices ar ranged in staggered relation, vertical shafts ingihe scoring'operation, means 01 adjusting- 133d d I horizontal shafts to vary the depth 1 oi; th serrations formed by the scoring devicesthereon, and ineans-for adjusting said. YPJ'tlCili shafts to vary the depth ofthe sex"- rations formed by thescol'ing; devices on said vertical shafts.-

7; A; machine foi imparting:arongh teX- tui-e surface to dry-pressed brick, comprisiindSl h-lzCUlflPl'iSiHgSidQ frames mounted on said bed plate, said bed plate having. depressions in which said side frames can be positioned when-the bi'iok'being operated-0n are arrangedfiatwise on the table, shafts carried by saidsside frames and provided with scoring; devices arranged so that they will form serrations in-the ends andinthe top side of the bIHGkLDIOXGCi OVGI sald table, and means for:turning.saidshafts to adjust the scoring devices thereon, said shafts being maintained inastationary. position during. the

scoring operation.

, OTTO GOEHLElL XVILLIAM. HILLE'BRAND. 

